import * as i0 from "@angular/core";
import { ElementRef, OnChanges, OnDestroy, OnInit, SimpleChanges } from "@angular/core";
import { AbstractControl, FormControl } from "@angular/forms";
interface IAlphagovAccessibleAutocompleteItem {
  name: string;
  value: string | number;
}
export declare class AlphagovAccessibleAutocompleteComponent implements OnInit, OnDestroy, OnChanges {
  private readonly changeDetector;
  private _control;
  private readonly ngUnsubscribe;
  private describedByObserver;
  private containerObserver;
  labelText: string;
  labelClasses: string;
  inputId: string;
  inputName: string;
  inputClasses: string;
  hintText: string;
  autoCompleteItems: IAlphagovAccessibleAutocompleteItem[];
  showAllValues: boolean;
  /** Formats suggestion HTML only; option names remain unchanged for input values and matching. */
  suggestionTemplate?: (label: string) => string;
  errors: string | null;
  autocompleteContainer: ElementRef<HTMLElement>;
  autoCompleteId: string;
  set control(abstractControl: AbstractControl | null);
  constructor();
  /**
   * Gets the control for the alphagov-accessible-autocomplete component.
   * @returns The control for the component.
   */
  get getControl(): FormControl<any>;
  /**
   * Handles the confirmation of a selected name.
   *
   * @param selectedName - The selected name.
   * @returns void
   */
  private handleOnConfirm;
  /**
   * Retrieves the default value for the autocomplete component.
   *
   * @returns The default value as a string.
   */
  private getDefaultValue;
  /**
   * Builds the props object for the AccessibleAutocomplete component.
   * @returns The props object for the AccessibleAutocomplete component.
   */
  private buildAutoCompleteProps;
  /**
   * Renders a custom dropdown arrow.
   * @param className – The class to apply to the SVG.
   * @returns An SVG string for the dropdown arrow.
   */
  private renderDropdownArrow;
  /**
   * Configures the auto-complete functionality using the accessible-autocomplete library.
   */
  private configureAutoComplete;
  /**
   * Gets the rendered autocomplete text input, if present.
   */
  private getVisibleInput;
  /**
   * Builds the hint/error ids to apply to aria-describedby.
   */
  private buildDescribedByIds;
  /**
   * Updates aria-describedby on the visible input, preserving any non-managed ids.
   */
  private applyDescribedBy;
  /**
   * Observes aria-describedby changes on the visible input to reapply managed ids.
   */
  private observeDescribedBy;
  /**
   * Waits for the visible input to appear, then applies describedby and observers.
   */
  private waitForInputAndApply;
  /**
   * Sets up the control subscription for value changes.
   * Whenever the control value changes, this method is called to handle the changes.
   * If the new value is null, it clears the autocomplete container and configures the autocomplete.
   */
  private setupControlSub;
  ngOnInit(): void;
  ngOnChanges(changes: SimpleChanges): void;
  ngOnDestroy(): void;
  static ɵfac: i0.ɵɵFactoryDeclaration<AlphagovAccessibleAutocompleteComponent, never>;
  static ɵcmp: i0.ɵɵComponentDeclaration<AlphagovAccessibleAutocompleteComponent, "opal-lib-alphagov-accessible-autocomplete", never, {
    "labelText": {
      "alias": "labelText";
      "required": true;
    };
    "labelClasses": {
      "alias": "labelClasses";
      "required": false;
    };
    "inputId": {
      "alias": "inputId";
      "required": true;
    };
    "inputName": {
      "alias": "inputName";
      "required": true;
    };
    "inputClasses": {
      "alias": "inputClasses";
      "required": false;
    };
    "hintText": {
      "alias": "hintText";
      "required": false;
    };
    "autoCompleteItems": {
      "alias": "autoCompleteItems";
      "required": true;
    };
    "showAllValues": {
      "alias": "showAllValues";
      "required": false;
    };
    "suggestionTemplate": {
      "alias": "suggestionTemplate";
      "required": false;
    };
    "errors": {
      "alias": "errors";
      "required": false;
    };
    "control": {
      "alias": "control";
      "required": true;
    };
  }, {}, never, never, true, never>;
}